Local Calling Guide

Area code/prefix search

Search area code/prefix (NPA/NXX)
  • Effective date searches are available only for US area codes. Our sources for non-US NPA-NXX data do not provide this information.
  • If you want to search an entire area code regardless of activity, leave both the next and past days fields set to zero.

Switch: PHLAPASLOMD

NPA-NXX BLOCK Rate Centre Region OCN LATA LIR Eff date Disc date
484-336 A Reading PA 4036 NEW CINGULAR WIRELESS PCS, LLC - DC 228      
484-507 A Fleetwood PA 4036 NEW CINGULAR WIRELESS PCS, LLC - DC 228      
484-515 A Allentown (Lehigh) PA 4036 NEW CINGULAR WIRELESS PCS, LLC - DC 228      
484-632 A Allentown (Lehigh) PA 4036 NEW CINGULAR WIRELESS PCS, LLC - DC 228      
484-695 A Allentown (Lehigh) PA 4036 NEW CINGULAR WIRELESS PCS, LLC - DC 228      
484-697 A Fleetwood PA 4036 NEW CINGULAR WIRELESS PCS, LLC - DC 228      
484-714 A Allentown (Lehigh) PA 4036 NEW CINGULAR WIRELESS PCS, LLC - DC 228      
484-725 A Allentown (Lehigh) PA 4036 NEW CINGULAR WIRELESS PCS, LLC - DC 228      
484-793 A Fleetwood PA 4036 NEW CINGULAR WIRELESS PCS, LLC - DC 228      
610-390 A Allentown (Lehigh) PA 4036 NEW CINGULAR WIRELESS PCS, LLC - DC 228      
610-392 A Allentown (Lehigh) PA 4036 NEW CINGULAR WIRELESS PCS, LLC - DC 228      
610-393 A Allentown (Lehigh) PA 4036 NEW CINGULAR WIRELESS PCS, LLC - DC 228      
610-451 A Reading PA 4036 NEW CINGULAR WIRELESS PCS, LLC - DC 228      
610-509 A Allentown (Lehigh) PA 4036 NEW CINGULAR WIRELESS PCS, LLC - DC 228      
610-533 A Allentown (Lehigh) PA 4036 NEW CINGULAR WIRELESS PCS, LLC - DC 228      
610-554 A Allentown (Lehigh) PA 4036 NEW CINGULAR WIRELESS PCS, LLC - DC 228      
610-597 A Allentown (Lehigh) PA 4036 NEW CINGULAR WIRELESS PCS, LLC - DC 228      
610-657 A Allentown (Lehigh) PA 4036 NEW CINGULAR WIRELESS PCS, LLC - DC 228      
610-698 A Reading PA 4036 NEW CINGULAR WIRELESS PCS, LLC - DC 228      
610-703 A Allentown (Lehigh) PA 4036 NEW CINGULAR WIRELESS PCS, LLC - DC 228      
610-704 A Allentown (Lehigh) PA 4036 NEW CINGULAR WIRELESS PCS, LLC - DC 228      
610-743 A Reading PA 4036 NEW CINGULAR WIRELESS PCS, LLC - DC 228      
610-751 A Allentown (Lehigh) PA 4036 NEW CINGULAR WIRELESS PCS, LLC - DC 228      
610-780 A Reading PA 4036 NEW CINGULAR WIRELESS PCS, LLC - DC 228      
610-781 A Reading PA 4036 NEW CINGULAR WIRELESS PCS, LLC - DC 228      
610-823 A Reading PA 4036 NEW CINGULAR WIRELESS PCS, LLC - DC 228      
610-914 A Reading PA 4036 NEW CINGULAR WIRELESS PCS, LLC - DC 228      
835-224 A Reading PA 4036 NEW CINGULAR WIRELESS PCS, LLC - DC 228      

Last updated: Tue, 13 Jan 2026 21:50:02 UTC

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